CN105736807B - Power output is adjustable pneumatic diaphragm control valve - Google Patents
Power output is adjustable pneumatic diaphragm control valve Download PDFInfo
- Publication number
- CN105736807B CN105736807B CN201610147835.9A CN201610147835A CN105736807B CN 105736807 B CN105736807 B CN 105736807B CN 201610147835 A CN201610147835 A CN 201610147835A CN 105736807 B CN105736807 B CN 105736807B
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- Prior art keywords
- valve
- driving
- rod
- power output
- spring
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
- F16K31/1264—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded with means to allow the side on which the springs are positioned to be altered
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The present invention relates to valves.A kind of adjustable pneumatic diaphragm control valve of power output, including valve body be equipped with runner, valve rod, the valve seat equipped with throttle orifice for being arranged at runner, the executing agency for being connected to valve rod spool and driving stem axial movement and spool being driven to be opened and closed the throttle orifice, the executing agency includes gas chamber, the driving stem that forms air chamber wall opens the valve opening diaphragm of spool, driving stem closes the conjunctions valve spring of spool, be supported in the crushing block for closing valve spring one end and driving crushing block squeezes conjunction valve spring and changes the drive rod of the deflection of conjunction valve spring.The present invention provides a kind of adjustable pneumatic diaphragm control valves of power output for the power output that can be online increased in a manner of being changed without valve or executing agency or reduce pneumatic diaphragn actuating mechanism, solve the problems, such as that existing pneumatic diaphragm control valve needs replacing valve type or replaces valve actuator to realize the change of power output.
Description
Technical field
The present invention relates to valve more particularly to a kind of adjustable pneumatic diaphragm control valves of power output.
Background technology
The species of valve have very much, China Patent No. be 2014207986021, grant number CN204592322U, title
To disclose a kind of existing dedusting butterfly valve in the patent document of " a kind of copper blast furnace off-gas dedusting butterfly valve ".In control valve product
In industry, pneumatic diaphragm control valve accounts for control valve more than 2/3, the pneumatic diaphragn actuating mechanism of pneumatic diaphragm control valve, once type
Number specification is certain, and power output is just fixed, its power output of the pneumatic diaphragn actuating mechanism of whole world pneumatic diaphragm control valve is both
Fixed, it can not just be changed after dispatching from the factory, thus lead to the problem of one：When pressure medium is used to change or to increase medium
Pressure, it is inadequate to occur actuator stem force, causes valve that can not close or even can not act, former way is exactly to replace
Valve type replaces valve actuator, this brings great trouble to valve manufacturer or user., user is adapted to reach
The purpose of pressure parameter variation.
The content of the invention
It can online be increased in a manner of being changed without valve or executing agency or reduced pneumatic thin the present invention provides a kind of
The adjustable pneumatic diaphragm control valve of power output of the power output of film executing agency, solving existing pneumatic diaphragm control valve needs more
It changes valve type or replaces valve actuator come the problem of realizing the change of power output.
More than technical problem is solved by following technical proposal：A kind of adjustable pneumatic diaphragm control valve of power output, bag
Include valve body equipped with runner, valve rod, the valve seat equipped with throttle orifice for being arranged at runner, be connected to valve rod spool and driving stem axis
The executing agency of the spool opening and closing throttle orifice is driven to movement, the executing agency includes gas chamber, the drive for forming air chamber wall
Ovable valve stem opens the valve opening diaphragm of spool, driving stem closes the conjunction valve spring of spool, is supported in the extruding for closing valve spring one end
Block and driving crushing block squeeze the drive rod for closing valve spring and changing the deflection for closing valve spring.It is pressed in use, being inputted to gas chamber
Strength body, pressed gas driving valve opening diaphragm movement, valve opening diaphragm driving stem driving spool remove throttle orifice and realize opening
Valve, valve opening spring is squeezed during valve opening；Valve rod drives under the action of valve spring is closed after the pressure of pressed gas is laid down
Spool is brought together into throttle orifice and realizes and close valve again.When need change valve power output close valve power on, pass through
The position that drive rod changes crushing block causes the initial deformation amount for closing valve spring to change, so as to fulfill power output is changed.
Preferably, the drive rod wears and is threadedly connected to the crushing block.By rotation of drive rod during use, drive
Lever driving crushing block realizes the change of power output along pressure ram axial movement.Operation is convenient during adjustment output.
Preferably, the drive rod is coaxially connected in the valve rod, the valve opening diaphragm and drive block are connected to described
The both ends of drive rod.It is compact-sized.
Preferably, the executing agency further includes the holding rod for being connected to drive rod, motor and powershift mechanism, institute
Stating motor includes motor casing and motor shaft, and the motor casing is fixed together with the holding rod, and the drive rod is connected to institute
One end of motor shaft is stated, the powershift mechanism includes starting the switch of the motor, drives the pressing lever of the switch, incites somebody to action
Motor shaft is inserted into the bolt being slidably connected in holding rod that holding rod links together and driving bolt in motor shaft
Spring is inserted into, the bolt is located between the switch and pressing lever, and the bolt is equipped with avoid holes, and the avoid holes are equipped with same
The pressing lever coordinates the driving inclined-plane that the bolt is driven to depart from motor shaft.The technical program can either pass through manual rotation
Holding rod goes driving drive rod to rotate, also by motor drive rod can be driven to rotate.It is rotated when by motor driving drive rod
When, pressing lever is pressed, pressing lever causes bolt translation and taken off with motor shaft towards pressing driving inclined-plane while switch translation
From, pressing lever be moved to through avoid holes and be pressed into switch or be switched on and off sense when（Then sense i.e. if inductive switch
It can）When, bolt is deviate from completely from motor shaft so that holding rod is disconnected with motor shaft and motor is started, electric motor starting rear-guard
Dynamic drive rod rotates and realizes and thread segment is threadedly coupled in threaded hole.When extracting pressing lever, switch disconnects and causes electricity
Machine stops, and since pressing lever loses the Intercepting effects to bolt, bolt is inserted into motor shaft again under the action of spring is inserted into
In, at this time rotate holding rod when can drive motor shaft rotate, motor shaft driving drive rod rotate, also can manually be turned
It is dynamic.
Preferably, the holding rod is arranged with handle sleeve, regulation handle set is equipped between the holding rod and handle sleeve
The elastic adjusting mechanism of elastic force between holding rod, the elastic adjusting mechanism include being set in outside holding rod and being threaded through handle
Base tube in gloves and the holding sheet being looped around outside the base tube, the holding sheet is by several pieces along the circumferentially distributed of base tube
Fricting strip is formed, and the fricting strip is equipped with several slide bars radially extended along base tube, and the sliding bar is arranged in the base
Pipe, the inner end of the slide bar, which is equipped with outside driving slider, to be moved into and drives the spring of fricting strip with handle sleeve abutting together, described
Elastic adjusting mechanism is additionally provided with the pretightning force adjustment structure for the pretightning force for adjusting the spring.In use, by gripping handle
Set goes rotation of drive rod and spool is driven to translate.Holding rod in the technical program has elasticity, relaxing during so as to improve use
Adaptive, the elastic effect in the technical program can also change, to adapt to different needs.The specific adjusting of holding rod elasticity
Process is, by pretightning force adjustment structure driving spring moving radially along base tube so that fricting strip with handle sleeve just
Pressure change, so as to fulfill the change of pretightning force so that the size for the power that handle sleeve is rocked compared with holding rod changes to reach
Different elastic effects.
Preferably, the pretightning force adjustment structure includes the cone of two tubular structures being supported on base tube outside holding rod
Forming head, driving conical head move axially and conical head can be made to stop at the driving structure of setting position and several mandrils, institute
It states two conical heads to be slidably connected in a manner that miner diameter end is arranged oppositely in the both ends of the base tube, the both ends of the mandril are put
It puts on the conical surface of described two conical heads, all slide bars of same fricting strip are by the spring supporting same
Described in root on mandril, the slide bar of each piece of fricting strip is respectively supported by a mandril.During adjusting, pass through axial direction
Change the position of conical head realize mandril along the moving radially of base tube, so as to fulfill change of the mandril along base tube radial position,
So as to fulfill the change of initial tension of spring.Convenience during adjusting is good.
Preferably, the driving structure include two jacking blocks being threaded in the both ends of the base tube, described two
A conical head is between described two jacking blocks.It is adjusted, adjusted then automatic in place conical head to be driven to realize by rotating jacking block
It positions, convenience during use is more preferable.
Preferably, the motor is equipped with wire connection terminal, the wire connection terminal includes insulator and is arranged at insulator
Wiring copper foil, the wiring copper foil are electrically connected with the coil of the motor, and the wiring copper foil is described equipped with penetrating into
Insulate in vivo wiring hole, and sleeve is slidably connected in the wiring hole, and the sleeve includes axially being distributed along sleeve
Insulating segment and same wiring copper foil abut together with conductive segment, be equipped with the heat generated by wiring copper foil in the insulator
The air cavity that is heated and by the gas expansion in air cavity be driven for driving conductive segment wrong with the wiring copper foil
The overload response cylinder opened.During to motor wiring, power cord is inserted into sleeve and realizes the electrical connection with sleeve, normally
It is what is conducted to link together during state for conductive segment with wiring copper foil.Circuit can generate Wen Sheng when the load, in air cavity
Gas can produce expansion, overload response cylinder generation action during the gas expansion of air cavity and drive sleeve cunning in wiring hole
It is dynamic, it response cylinder driving is then overloaded when temperature is raised to design temperature slides into conductive segment to sleeve and stagger with wiring copper foil, from
And realize power-off；Temperature can decline after Failure elimination, and temperature declines the contraction of gas in then air cavity, and the result of contraction is to cause
Sleeve opposite direction slides when being risen in wiring hole towards equality of temperature, and then conductive segment is same again when temperature is restored to normal value
Wiring copper foil links together, so as to fulfill automatically reseting.
Preferably, the overload response cylinder includes overload response cylinder block and overload response cylinder piston, it is described
The overload is responded cylinder block and is divided into closing chamber and open cavity by overload response cylinder piston, and the closing chamber is the same as the gas
Chamber connects, and the overload response cylinder piston is linked together by connecting rod with the sleeve.It is simple in structure.Making side
Just.
Preferably, the axis of the overload response cylinder piston is parallel with the axis of the connector sleeve.It can improve
It carries reliability when response cylinder driving sleeve moves and further improves structural compactness.
Preferably, the wiring hole is vertically extending, the wiring copper foil is located at the lower end of the wiring hole, institute
The lower section that insulating segment is located at the conductive segment is stated, the insulating segment is sealed connected together with the wiring hole, the wiring hole
It is interior to be filled with conduction liquid.Repeatedly action can be avoided to generate electrical contact bad phenomenon after generating abrasion and prevent from producing during action
Raw sparking.
Preferably, the insulating segment is equipped with the exterior seal ring for being sealed connected together insulating segment with wiring hole and is used for
The inner seal ring that insulating segment is sealed connected together with power cord.It can both ensure that sleeve is reliably sealed with wiring copper foil
Resistance when linking together, and can reduce mobile.
Preferably, the inner peripheral surface of the insulating segment is equipped with support ball.Resistance when further can reduce mobile, with
Improve sensitivity during dynamic overload response.
Preferably, the inner peripheral surface of the conductive segment is equipped with the inner support shrapnel radially-inwardly to arch upward along conductive segment, periphery
Face is equipped with the outer support shrapnel radially outward to arch upward along conductive segment.Reliability during relay contacts can either be improved, and can be dropped
Resistance when low mobile is to improve response sensitivity.
Present invention tool has the advantage that：It can online be increased in a manner of being changed without valve or executing agency or reduced pneumatic
The power output of diaphragm actuator.
Description of the drawings
Fig. 1 is the schematic diagram of the embodiment of the present invention one.
Fig. 2 is the schematic diagram of the executing agency in the embodiment of the present invention two.
Fig. 3 is the cross-sectional view of the holding rod in Fig. 2.
Fig. 4 is the axial schematic cross-sectional view of the holding rod in Fig. 2.
Fig. 5 is the close-up schematic view at the A of Fig. 2.
Fig. 6 is the enlarged diagram of wire connection terminal.
Fig. 7 is schematic diagram when wire connection terminal links together with power cord.
In figure：Valve body 1, runner 11, valve seat 12, throttle orifice 13, powershift mechanism 2, switch 21, pressing lever 22, bolt
23rd, avoid holes 231, driving inclined-plane 232, insertion spring 24, locking hole 25, wire connection terminal 3, wiring copper foil 31, wiring hole 32, thoroughly
Stomata 321, insulator 33, sleeve 34, insulating segment 341, conductive segment 342, exterior seal ring 343, inner seal ring 344, back-up roller
Pearl 345, inner support shrapnel 346, outer support shrapnel 347, air cavity 35, overload respond cylinder 36, overload responds cylinder block 361,
Closing chamber 3611, open cavity 3612, stomata 3613, overload response cylinder piston 362, connecting rod 363, air flue 37, power cord 38,
Executing agency 4, drive rod 41, gas chamber 42, conjunction valve spring 43, crushing block 44, valve opening diaphragm 45, motor 5, motor casing 51, motor
Axis 52, speed reducer 53, holding rod 6, handle sleeve 61, spool 7, elastic adjusting mechanism 8, base tube 81, holding sheet 82, fricting strip 821,
Slide bar 822, spring 823, pretightning force adjustment structure 83, conical head 831, mandril 832, driving structure 833, jacking block 8331, valve rod
9。
Specific embodiment
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
Embodiment one, referring to Fig. 1, a kind of adjustable pneumatic diaphragm control valve of power output including valve body 1, valve rod 9 and performs machine
Structure 4.Valve body 1 is made for stainless steel.Valve body 1 is equipped with runner 11.Runner 11 is equipped with valve seat 12.Valve seat 12 is equipped with throttle orifice
13.Valve rod 9 is slidably and rotatably connected to valve body 1.One end Ji Tuzhong lower ends of valve rod 9 are equipped with spool 7.
Executing agency 4 includes drive rod 41, gas chamber 42, closes valve spring 43 and crushing block 44.Drive rod 41 it is coaxially connected in
The upper end of valve rod 9.Gas chamber 42 is stretched out in the upper end of drive rod 41.Gas chamber 42 is equipped with the valve opening diaphragm 45 for forming air chamber wall.Valve opening film
Piece 45 is connected to the upper end of drive rod 41.Close the upper end of valve spring 43 with valve body 1 abut together, lower end abuts with crushing block 44
Together.Crushing block 44 is nut body.Crushing block 44 is threadedly connected to the lower end of 44 drive rod 41 of crushing block.
The process of folding valve of the present invention is：Give gas chamber 42 input pressure gas, pressed gas driving valve opening diaphragm 45 moves up,
It is equipped with when valve opening diaphragm 45 moves up by 41 driving stem 9 of drive rod, valve rod 9 drives spool 7 to remove throttle orifice 13 and realize and beat
Valve opening door, valve opening spring 43 is further squeezed during valve opening；Valve spring 43 is being closed after the pressure of pressed gas is laid down
Effect lower valve rod 9 moves down.When valve rod 9 moves down spool 7 is driven to be brought together into again in throttle orifice 13 and realize and close valve.
When the power output for changing valve is needed to close in the power of valve, pass through the upper end of rotation of drive rod 41, drive rod 41
During rotation crushing block 44 is driven to move up and down, so that the initial deformation amount generation for closing valve spring 43 changes when crushing block 44 moves up and down
Become, so as to fulfill the change of power output is changed.
Embodiment two, the difference with embodiment one are：
Referring to Fig. 2, executing agency 4 further includes holding rod 6, motor 5 and powershift mechanism 2.Drive rod 41 and holding rod 6
It links together in T-shaped.Holding rod 6 is equipped with handle sleeve 61.Motor 5 includes motor casing 51 and motor shaft 52.Motor casing 51
It is fixed together with holding rod 6.Motor casing 51 is equipped with wire connection terminal 3.Drive rod 41 is connected to motor shaft 52 by speed reducer 53
One end.The other end of motor shaft 52 is threaded through in holding rod 6.
Referring to Fig. 3, elastic adjusting mechanism 8 is equipped between holding rod 6 and handle sleeve 61.Elastic adjusting mechanism 8 includes base tube
81st, holding sheet 82 and pretightning force adjustment structure 83.Base tube 81 is set in outside holding rod 6.Base tube 81 is threaded through in handle sleeve 61.Folder
Layer 82 is held to be made of several pieces of fricting strips 821.Fricting strip 821 is circumferentially distributed along base tube 81.Fricting strip 821 is equipped with several along base
Pipe radially extends the slide bar 822 being axially distributed.The slip of slide bar 822 is arranged in base tube 81.The inner end of slide bar 822 is equipped with spring
823.Spring 823 drives fricting strip to be abutted together with handle sleeve 61 by slide bar.The pretightning force adjustment structure 83 of outer shifting includes
Two conical heads 831 and several mandrils 832.Conical head 831 is tubular structure.Conical head 831 is set on holding rod 6 and wears
Base tube 81 is linked together with holding rod 6 in base tube 81.Conical head 831 is only slidably connected in base tube 81.Mandril
832 along the circumferentially distributed axially extending of base tube 81.All slide bars 822 of same fricting strip 821 are supported on by spring 823
On same root mandril 832, the slide bar of each piece of fricting strip is respectively supported by a mandril.
Referring to Fig. 4, two conical heads 831 are slidably connected in a manner that miner diameter end is arranged oppositely in the both ends of base tube 81.
The both ends of mandril 832 are shelved on the conical surface of two conical heads 831.Pretightning force adjustment structure 83 further includes driving structure 833.It drives
Dynamic structure 833 includes two jacking blocks 8331 being threaded in the both ends of base tube 81.Jacking block 8331 is set on holding rod 6.
Two conical heads 831 are located between two jacking blocks 8331.
Referring to Fig. 5, powershift mechanism 2 includes switch 21, pressing lever 22, bolt 23 and insertion spring 24.Switch 21 Hes
Pressing lever 22 is located at the both sides of bolt 23.Switch 21 is fixed in holding rod 6.Switch 21 is by compressing switch, due to controlling motor 5
Start and stop.Pressing lever 22 is threaded through in holding rod 6.Bolt 23 is slidably connected in holding rod 6.Motor shaft 52 is equipped with for inserting
The locking hole 25 that pin 23 is inserted into.Bolt 23 is equipped with avoid holes 231.Avoid holes 231 go driving to open for pressing lever 22 more than bolt 23
Close 21.Avoid holes 231 are equipped with driving inclined-plane 232 towards one end of pressing lever 22.Insertion spring 24 is used to that bolt 23 to be driven to be inserted into
Into the locking hole 25 in motor shaft 52.
Referring to Fig. 6, wire connection terminal 3 includes insulator 33 and is arranged at the wiring copper foil 31 of insulator surface.Insulator 33
It is fixed together with motor casing 51.Wiring copper foil 31 is electrically connected with the coil of motor.Wiring copper foil 31 is equipped with wiring hole
32.Wiring hole 32 is penetrated into insulator 33.Wiring hole 32 is the blind hole of vertically extending upper end closed.Wiring copper foil
31 are located at lower end, that is, openend of wiring hole 32.Sleeve 34 is slidably connected in wiring hole 32.Sleeve 34 includes insulating segment
341 and conductive segment 342.Insulating segment 341 and conductive segment 342 are distributed along sleeve 34 is axial.Insulating segment 341 is located at conductive segment 342
Lower section.Air cavity 35 and overload response cylinder 36 are equipped in insulator 33.Wiring copper foil 31 forms a part for the wall of air cavity 35.
Overload response cylinder 36 at least there are two.Overload responds cylinder 36 along the circumferentially distributed of sleeve 34.Overload response cylinder 36 wraps
Include overload response cylinder block 361 and overload response cylinder piston 362.Overload response cylinder piston 362, which will overload, responds cylinder
Cylinder body 361 is divided into closing chamber 3611 and open cavity 3612.Closing chamber 3611 is connected by air flue 37 with air cavity 35.Open cavity
3612 are equipped with stomata 3613, realize opening with atmosphere by stomata 3613.Overload response cylinder piston 362 passes through company
Extension bar 363 links together with the insulating segment 341 in sleeve 34.The axis of overload response cylinder piston 362 is the same as sleeve 34
Axis it is parallel.
Insulating segment 341 is arranged with exterior seal ring 343.Exterior seal ring 343 is rubber ring.Exterior seal ring 343 is by insulating segment 341
It is sealed connected together with wiring copper foil 31.341 inner peripheral surface of insulating segment is equipped with inner seal ring 344 and several support balls 345.
The inner peripheral surface of conductive segment 342 is equipped with inner support shrapnel 346.Inner support shrapnel 346 is the arch radially-inwardly to arch upward along conductive segment
Structure.The outer circumferential surface of conductive segment 342 is equipped with outer support shrapnel 347.Outer support shrapnel 347 radially outward arches upward along conductive segment
Domes.Conductive segment 342 is abutted together by outer support shrapnel 347 with wiring copper foil 31.The upper end of wiring hole 32 is equipped with
Air hole 321.
Referring to Fig. 7, when the power supply that induces one is to motor, one end that power cord 38 is located to wiring copper foil 31 from wiring hole 32 is inserted into
In sleeve 34.Insulating segment 341 is sealed connected together by inner seal ring 344 with power cord 38.346 same power supply of inner support shrapnel
38 elasticity of line, which abuts, together links together conductive segment 342 and 38 electric conductivity of power cord.It adds in and leads in wiring hole 32
It is electro-hydraulic.
Wiring copper foil 31 can generate Wen Sheng when the load, and the gas in air cavity 35 can produce expansion and iodine generates distillation and makes
Air pressure rise in air cavity 35, the raised structure of air pressure be the gas inlet road 37 in air cavity 35 flow in closing chamber 3611 and
Driving（Pressure in open cavity 3612 remains identical with atmospheric pressure）Overload response cylinder piston 362 moves up.Overload
Response cylinder piston 362 drives sleeve 34 to be moved up in wiring hole 32 by connecting rod 363.When temperature is raised to design temperature then
Overload response cylinder 36 driving sleeve slide into conductive segment 342 with wiring copper foil 31 stagger and insulating segment 341 with wiring copper foil
31 contacts, so as to fulfill power-off.Temperature can decline after Failure elimination, and temperature declines contraction of gas and iodine change in then air cavity 35
So that the air pressure in air cavity 36 declines into solid-state, the result of decline is to cause the slide downward in wiring hole 32 of sleeve 34,
Then conductive segment 342 links together again with wiring copper foil 31, so as to fulfill automatically reseting when temperature is restored to normal value.
Referring to Fig. 5, the process that the present embodiment carries out powershift is：When pressing lever 22 is in extraction state, it is being inserted into
Under the action of spring 24, bolt 23 is inserted into avoid holes 231 and holding rod 6 and motor shaft 52 links together, and opens at this time
Close and 21 be off, motor 5 to stop, can only manual rotation, i.e., manually grip handle sleeve 61 and rotate holding rod 6,
Holding rod 6 is rotated together by 23 drive motor shaft 52 of bolt, when motor shaft 52 rotates drive rod 41 is driven to rotate and realize drive
Ovable valve stem 9 lifts.
When needing to carry out motor driving, pressing lever 22 is pressed, in the effect of driving inclined-plane 232 while pressing lever 22 moves down
Under, the extraction avoid holes 231 of bolt 23 are arranged so that by 24 energy storage of pressing spring.When pressing lever 22 is applied to switch 21, bolt
It is that motor shaft 52 is disconnected with holding rod 6, motor 5 is obtained electric and started, motor after electric motor starting at this time that avoid holes 231 are extracted in 23 completions
Axis 52 rotates and drive rod 41 is driven to rotate.When extracting pressing lever 22 and so that pressing lever loses the effect to switch 21, electricity
Machine dead electricity stops.
Referring to Fig. 3 and Fig. 4, the process for adjusting the elastic effect of handle sleeve is：Conical head is driven by rotating jacking block 8331
831 are moved along the axial direction of base tube 81, and conical head 831 drives the moving radially along base tube 81 of mandril 832, and mandril 832 squeezes
Spring 823 and change pretightning force.
Claims (7)
1. a kind of adjustable pneumatic diaphragm control valve of power output, including valve body be equipped with runner, valve rod, be arranged at runner be equipped with section
The valve seat of discharge orifice, the execution machine for being connected to valve rod spool and driving stem axial movement and spool being driven to be opened and closed the throttle orifice
Structure, which is characterized in that the executing agency includes gas chamber, the valve opening diaphragm for the driving stem unlatching spool for forming air chamber wall, drive
Ovable valve stem closes the conjunctions valve spring of spool, be supported in the crushing block for closing valve spring one end and driving crushing block squeezes conjunction valve spring and
Change the drive rod for the deflection for closing valve spring, the executing agency further includes the holding rod for being connected to drive rod, motor and moves
Power switching mechanism, the motor include motor casing and motor shaft, and the motor casing is fixed together with the holding rod, the drive
Lever is connected to one end of the motor shaft, is opened described in switch of the powershift mechanism including the startup motor, driving
The pressing lever of pass, the bolt being slidably connected in holding rod that motor shaft is linked together with holding rod and driving bolt insertion
Insertion spring into motor shaft, the bolt are located between the switch and pressing lever, and the bolt is equipped with avoid holes, described
Avoid holes are equipped with coordinates the driving inclined-plane that the bolt is driven to depart from motor shaft with the pressing lever, and the holding rod is arranged with
Handle sleeve is equipped with the elastic adjusting mechanism of the elastic force between regulation handle set and holding rod between the holding rod and handle sleeve,
The elastic adjusting mechanism includes being set in outside holding rod and being threaded through the base tube in handle sleeve and be looped around outside the base tube
Holding sheet, the holding sheet forms by several pieces along the circumferentially distributed fricting strip of base tube, and the fricting strip is equipped with several edges
The slide bar radially extended of base tube, the sliding bar are arranged in the base tube, and the inner end of the slide bar is equipped with outside driving slider
It is moved into and drives the spring of fricting strip with handle sleeve abutting together, the elastic adjusting mechanism, which is additionally provided with, adjusts the spring
The pretightning force adjustment structure of pretightning force, the motor are equipped with wire connection terminal, and the wire connection terminal includes insulator and is arranged at absolutely
The wiring copper foil of edge body, the wiring copper foil are electrically connected with the coil of the motor, and the wiring copper foil is equipped with perforation
To the in vivo wiring hole that insulate, sleeve is slidably connected in the wiring hole, the sleeve is included along sleeve axis
To insulating segment and the same wiring copper foil of distribution abut together with conductive segment, be equipped in the insulator and generated by wiring copper foil
The air cavity that is heated of heat and by the gas expansion in air cavity be driven for driving conductive segment with the wiring
The overload response cylinder that copper foil staggers.
2. the adjustable pneumatic diaphragm control valve of power output according to claim 1, which is characterized in that the drive rod is worn simultaneously
It is threadedly connected to the crushing block.
3. the adjustable pneumatic diaphragm control valve of power output according to claim 2, which is characterized in that the drive rod coaxially connects
The valve rod is connected to, the valve opening diaphragm and drive block are connected to the both ends of the drive rod.
4. the adjustable pneumatic diaphragm control valve of power output according to claim 1 or 2 or 3, which is characterized in that the pretightning force
Adjustment structure includes the conical head of two tubular structures being supported on base tube outside holding rod, the axial movement of driving conical head and energy
Conical head is enough made to stop at the driving structure of setting position and several mandrils, described two conical heads are arranged oppositely with miner diameter end
Mode be slidably connected in the both ends of the base tube, the both ends of the mandril are shelved on the conical surface of described two conical heads,
All slide bars of same fricting strip by the spring supporting described in same root on mandril, each piece of fricting strip
The slide bar is respectively supported by a mandril.
5. the adjustable pneumatic diaphragm control valve of power output according to claim 4, which is characterized in that the driving structure includes
Two jacking blocks being threaded in the both ends of the base tube, described two conical heads are between described two jacking blocks.
6. the adjustable pneumatic diaphragm control valve of power output according to claim 1 or 2 or 3, which is characterized in that the overload is rung
Cylinder is answered to include overload response cylinder block and overload response cylinder piston, the overload response cylinder piston rings the overload
Cylinder block is answered to be divided into closing chamber and open cavity, the closing chamber is connected with the air cavity, the overload response cylinder piston
It is linked together by connecting rod with the sleeve.
7. the adjustable pneumatic diaphragm control valve of power output according to claim 6, which is characterized in that the wiring hole is vertically
Direction extends, and the wiring copper foil is located at the lower end of the wiring hole, and the insulating segment is located at the lower section of the conductive segment, described
Insulating segment is sealed connected together with the wiring hole, and conduction liquid is filled in the wiring hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN201521658U (en) * | 2009-11-12 | 2010-07-07 | 扬中市阀门厂有限公司 | Pneumatic membrane control valve |
| CN202176813U (en) * | 2011-07-28 | 2012-03-28 | 杭州良工阀门有限公司 | Self-operated pressure-regulating valve with dustproof function |
| CN202176798U (en) * | 2011-07-12 | 2012-03-28 | 天津祥嘉流体控制系统有限公司 | Manual /power-operated disturbance-free switch structure of electric actuator |
| CN103639465A (en) * | 2013-12-09 | 2014-03-19 | 天津市金万方钢结构有限公司 | Expansion shaft |
| CN203937679U (en) * | 2014-05-23 | 2014-11-12 | 浙江海洋学院 | Train exchange system |
| CN105276268A (en) * | 2014-07-24 | 2016-01-27 | 陈俊 | Pneumatic diaphragm control valve |
| CN205423842U (en) * | 2016-03-16 | 2016-08-03 | 杭州艾诺流体控制仪表有限公司 | Pneumatic film governing valve that power output is adjustable |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201521658U (en) * | 2009-11-12 | 2010-07-07 | 扬中市阀门厂有限公司 | Pneumatic membrane control valve |
| CN202176798U (en) * | 2011-07-12 | 2012-03-28 | 天津祥嘉流体控制系统有限公司 | Manual /power-operated disturbance-free switch structure of electric actuator |
| CN202176813U (en) * | 2011-07-28 | 2012-03-28 | 杭州良工阀门有限公司 | Self-operated pressure-regulating valve with dustproof function |
| CN103639465A (en) * | 2013-12-09 | 2014-03-19 | 天津市金万方钢结构有限公司 | Expansion shaft |
| CN203937679U (en) * | 2014-05-23 | 2014-11-12 | 浙江海洋学院 | Train exchange system |
| CN105276268A (en) * | 2014-07-24 | 2016-01-27 | 陈俊 | Pneumatic diaphragm control valve |
| CN205423842U (en) * | 2016-03-16 | 2016-08-03 | 杭州艾诺流体控制仪表有限公司 | Pneumatic film governing valve that power output is adjustable |
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| CN105736807A (en) | 2016-07-06 |
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Effective date of registration: 20190612 Address after: 311400 Building No. 20, No. 1 Road, Chunjianxiang Industrial Functional Zone, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Fischer Technology Co., Ltd. Address before: 311403 Chunjianxiang Chunjiancun Xiagao, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU AINUO FLUID CONTROL INSTRUMENT CO., LTD. |